How To determine the rating of an inverter that you will need

In case you want to buy an inverter and you do not know the size to buy, maybe 20kva, 30kva or even more, there is a simple way to do the calculation:

Assuming you have all these loads in your house



Fan             200w    220-240(v)
T.V             150w    220-240(v)
H.T            300w    220-240(v)
Light         80w     220-240(v)
Fridge       400w   220-240(v)
Freezer     150w   220-240(v)

All these hoe equiptments have the energy they consume written on them. You should first add them up

(200+150+300+80+400+150)w=1280w

the next step is to divide the sum by the power factor(0.6 or 0.8)

1280/0.8=1600va or 1.6kva

But you will have to give room for tolerance, for me i would recommend a 3.5kva inverter.

Feel free to ask question by commenting below.